Dispenser for pastelike substance having a vaned rotary extruding element



Jan. 22, 1952 F. L. EDDY DISPENSER FOR PASTE-LIKE SUBSTANCE HAVING A VANED ROTARY EXTRUDING ELEMENT Filed Jan. 19. 1948 INVENTOR FLOYD L. EDDY ATTOR N EY Patented Jan. 22, 1952 DISPENSER FOR PASTELIKE SUBSTANCE HAVING A VANED ROTARY EXTRUDING ELEMENT Floyd L. my, Los Angeles, Calif.

Application January 19, 1948, Serial No. 3,046

' 3 Claims. I 1

This invention relates generally to dispensers for measuring out standard quantities of substances, and is particularly useful for the dispensing of plastic or paste materials such as Soap paste.

Soap in the form of paste is superior for some purposes to soap in either the liquid, powder, or the solid form. However, in industrial establishments and the like, the use of soap paste, where it would otherwise be highly desirable, has been prevented by the unavailabilit of suitable dispensers. It is highly important in such places to provide a dispenser that can be easily manipulated to deliver a measured quantity of soap paste.

An object of the invention is to provide a paste dispenser that is simple to operate and delivers a fairly accurately measured quantity of soap paste in response to a predetermined operation.

Another object of the invention is to provide a paste dispenser which is rugged, durablaand long-lived. 7

Another object is to provide a paste dispenser that can be manufacturedat reasonable cost.

Other more specific objects and features of the invention will become apparent from the following description of a preferred embodiment of the invention with reference to the drawing, in which:

Fig. l is a front elevation of a dispenser in accordance with the invention;

Fig.2 is an end elevation looking at the left end of Fig. 1;

Fig. 3 is a horizontal section taken in the plane III-III of Fig. l; and

Fig. 4 is a vertical section taken in the plane IV-IV of Fig. 3.

As clearly shown in the drawing, a dispenser in accordance with the invention may comprise a receptacle I having a semi-cylindrical bot-- tom wall I I which merges at its upper edges into flat front and rear walls [2 and I3 respectively, the three wall sections II, I2, and I3 prefer-ably being formed from a single sheet of metal. The container is completed by end walls I4 and I5, and a pivotally connected lid It. The pivotal connection between the lid and the rest of the container may be efiected by a hinge wire Il which extends through front and rear flanges on the lid and through the front and rear walls l3 and l2,'the ends of the wire being flattened to retain it. To support the container against a wall a bracket l8 may be provided on the rear thereof, this bracket being of general U-shape, with the cross part of the U welded or otherwise 2 secured to the rear flat wall I2 of the container, and the ends of the legs of the U being bent parallel to the rear wall I2 as indicated at I8l in Fig. 1. These flattened portions may have screw holes I82 therein.

The soap is dispensed through an opening I9 in the left end wall l4, and the movement of the soap paste through the opening is eifected by rotating a crank 20 which projects from the right end wall I5. Thus the crank 20 extends through a bearing bushing 2| in the end wall I5 and is threaded into an axle 22 which extends between the bushing 2| and a corresponding bushing 23 in the opposite end wall I4. A

screw 24 extending through the bushing 23 and screwed into the left end of the axle 22 rotatably supports the left end of the axle.

Mounted at spaced intervals longitudinally along the axle 22 are a plurality of vanes 26. These vanes 26 are of interrupted circular shape and may be stamped from sheet metal, each having an integral flange 26a at the center of size to be pressed on the axle 22. Positive anchoring of the vanes 26 to the axle 22 may be insured by spot welding each collar 26a to the axle at one or more points as indicated at 21.

The leading edges 26b of each vane are bent out of the plane of the collar 26a, whereas each trailing edge 260 is substantially fiat and in the plane of the center portion of the vane, as best illustrated in Fig. 3.

In operation, during each half revolution of the crank 20, one half of the end vane traverses the opening I9 and forces a substantially uniform quantity of soap paste out of the opening. At the same time, the remaining vanes advance the main body of the paste along the curved bottom wall I I, to replace the quantity that was dispensed through the aperture I9.

An important feature of the invention is the use of the plurality of interrupted vanes 26, which not only insures positive fed of a fixed quantity of paste through the orifice during each half revolution, but insures the maintenance of a quantity of paste in the end or the container adjacent the discharge aperture I9.

In contrast, a solid or continuous helix has been found by experiment to fill with soap paste, which rotates with it and fails to feed paste to the discharge opening. It is to be understood in this connection that the invention is to be used with paste material of such thick or stiff consistency that it is substantially incapable of flowing.

the vanes 26 are aligned longitudinally with each other, and that the leading edge 2% of each vane at its outer end is substantially in the same transverse plane as the trailing edge 260 of the next adjacent vane. It has been found by experiment that this arrangement of the vanes is more effective in handling thick soap paste than other arrangements.

Although for the purpose of explaining the invention, a particular embodiment thereof has been shown and described, obvious modifications will occur to a person skilled in the art, and I do not desire to be limited to the exact details shown and described.

I claim:

1. A dispenser of the type described comprising a casing having a eylindrically curved bottom wall. and end walls associated therewith, one of said end walls having a discharge aperture therein;

screw means within said container having its axis substantially concentric with said cylindrically curved bottom wall, and means for rotating said screw means; said screw means comprising a central shaft having a plurality of axially spaced vanes thereon, each vane having an inner end adjacent said shaft and an outer end radially displaced from said shaft, and having a trailing edge and a leading edge with the trailing edge nearer said discharge aperture than said leading edge, that portion of the leading edge most remote from said aperture bein substantially in the same transverse plane as the trailing edge of the next adjacent vane, and the entire trailing edge of each vane lyin substantially in a plane normal to said axis, and the leading edges diverging progressively from said plane from their inner ends to their outer ends.

' 2. A dispenser of the type described comprising: a casing having a semi-cylindrical bottom wall and vertical side walls rising from the upper edges of said bottom wall, and end walls closing said side and bottom walls, one of said end walls having a discharge aperture adjacent its lower end; screw means within said container having its axis. substantiallyconcentric with said cyllndrically curved bottom wall, and means for rotating said screw means; said screw means comprising discontinuous vanes each having an arcuate outer edge approximately concentric with respect to said bottom wall and of slightly less radius than said bottom wall and being continuous from said outer edge to said axis, at least the end vane adjacent said aperture having a trailing edge lying substantially entirely in a transverse plane closely adjacent said apertured end wall, and each of said vanes having a leading edge more remote from said apertured end wall than its trailing edge.

3. A dispenser of the type described comprising: a casing havinga semi-cylindrical bottom wall and end walls closin said bottom wall, one of said end walls having a discharge aperture adjacent its lower end; screw means within said container having its axis substantially concentric with said bottom wall, and means for rotating said screw means; said screw means comprising a central shaft having a plurality of axially spaced vanes. thereon, each vane having a trailing edge and a leading edge with the trailing edge nearer said apertured end wall than is the leading edge, that portion of the leading edge of each vane most remote axially from the trailing edge being substantially in the same transverse plane as the trailing edge of the next adjacent vane, and said trailing edges of said vanes lying in planes normal to said axis. V

FLOYD L. EDDY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Re. 6,672 Regan Oct. 5, 1875 376,552 Rossler Jan. 1'7, 1888 Landis June 12, 1,398,790 Ogur Nov. 29, 1921 1,760,404 Funk May 27, 1930 1,863,964 Brenner June 21, 1932 1,948,861 Lindgi'l'l Feb. 27, 1934 2,018,784 Hall Oct. 29,- 1935 

